Design support method, server, and design support system

ABSTRACT

A design support system for permitting a design that easily meets desired conditions regarding an entire item group is provided. An automatic estimation system acting as the design support system comprises: an item recognition section that recognizes each of the items included in the item group by individually recognizing elements making up the item; a designated condition recognition section that recognizes a designated condition from the manufacturing conditions; and a recommended-to-be-examined element recognition section that recognizes, with respect to the designated condition recognized, the element corresponding to any of the manufacturing conditions that is recommended to be examined for changes. The recommended-to-be-examined element recognition section displays a model of the item group by highlighting the element for which the manufacturing condition is recommended to be examined for changes.

CROSS-REFERENCE TO RELATED PATENT APPLICATIONS

This application is a U.S. National Phase Application under 35 U.S.C. §371 of International Patent Application No. PCT/JP2017/025696, filedJul. 14, 2017, and claims the benefit of Japanese Patent Application No.2016-157025, filed on Aug. 9, 2016, all of which are incorporated hereinby reference in their entirety. The International Application waspublished in Japanese on Feb. 15, 2018 as International Publication No.WO/2018/030071 under PCT Article 21(2).

FIELD OF THE INVENTION

The present invention relates to a design support method, a server, anda design support system for supporting the design of an item groupincluding a plurality of items.

BACKGROUND OF THE INVENTION

Heretofore, there have been design support systems that provide athree-dimensional (3D) display of shape data (e.g., computer-aideddesign (CAD) data) regarding mechanical equipment typically including aplurality of sheet-metal parts, machined parts, pressed parts, andinjection-molded parts (called “items” hereunder, hence the mechanicalequipment is referred to as “item group” hereunder) with a view tosupporting the design of the assembly of the items.

One such design support system is known to display, in the same color,the items having the same manufacturing conditions such as the sametolerance, material, and surface treatment (e.g., see JapaneseUnexamined Publication No. 2009-93639).

Technical Problem

However, the existing design support systems such as one described inJapanese Unexamined Publication No. 2009-93639 involve recognizing aplurality of items having the same manufacturing conditions as a singlegroup and allowing the plurality of items in the group to be selectedcollectively to improve the operational convenience at design time.

For that reason, if a user has no specialized knowledge of design or ifa manufacturing condition of one item or one group is changed, there isthe possibility of having to examine, one by one, the items in the groupor items not in that group or in some other group concerned with thechanged condition as to whether their manufacturing conditions need tobe changed.

The present invention has been made in view of the above circumstances.An object of the invention is therefore to provide a design supportmethod, a server, and a design support system capable of performingdesign that easily meets the desired conditions for the entire itemgroup.

SUMMARY OF THE INVENTION Solution to Problem

In achieving the above object and according to the present invention,there is provided a design support method for supporting the design ofan item group including a plurality of items, the design support methodcomprising:

an item recognizing step of recognizing each of the items included inthe item group by individually recognizing elements making up the item;

a manufacturing condition acquiring step of acquiring, for each of therecognized items, manufacturing conditions selectable at a time ofmanufacturing the item;

a designated condition recognizing step of recognizing a designatedcondition from the manufacturing conditions;

a recommended-to-be-examined element recognizing step of recognizing,with respect to the designated condition recognized, the elementcorresponding to any of the manufacturing conditions that is recommendedto be examined for changes; and

an item group displaying step of displaying a model of the item group byhighlighting the element for which the manufacturing condition isrecommended to be examined for changes.

As outlined above, the design support method of the present inventioninvolves first determining the manufacturing conditions recommended tobe examined for changes with respect to the condition designatedregarding the elements making up any of the items. Thereafter, theelements corresponding to the manufacturing conditions recommended to beexamined for changes are highlighted on a display that indicates a modelof the item group.

At this point, the criteria for discriminating whether a givenmanufacturing condition is recommended to be examined for changes may beconstituted by desired conditions determined beforehand by a userregarding the item group as a whole (e.g., price, delivery date, weight,size, etc., of the entire item group), or by previously accumulated dataabout the conditions preferred in terms of design or about theconditions generally favored by users.

This allows the user to visually recognize, as specific elements, themanufacturing condition to be examined next. That is, the design supportmethod of the present invention permits presentation of themanufacturing conditions to be examined in an intuitively comprehensiblemanner, so that the manufacturing conditions are examined efficiently.

Thus, the design support method of the present invention allows theuser, who may not possess specialized knowledge of design, to easilydesign the entire item group that meets the desired conditions.

With the design support method of the present invention, if there are aplurality of the elements highlighted on display by the above-mentioneditem group displaying step, the highlighted elements for which the samemanufacturing condition is designated are preferably painted in the samecolor.

The above configuration makes it possible to examine a plurality ofelements at the same time. As a result, the entire item group can bedesigned more easily in a manner meeting the desired conditions.

Also, in achieving the above object and according to the presentinvention, there is provided a server for supporting an item groupincluding a plurality of items, the server comprising:

an item recognition section recognizing each of the items included inthe item group by individually recognizing elements making up the item;

an item information storage section storing a manufacturing conditionfor each of the elements selectable at a time of manufacturing theitems;

a manufacturing condition acquisition section acquiring, for each of theitems recognized by the item recognition section, the manufacturingconditions selectable at a time of manufacturing the item;

a designated condition recognition section recognizing a designatedcondition from the manufacturing conditions;

a recommended-to-be-examined element recognition section recognizing,with respect to the designated condition recognized, the elementcorresponding to any of the manufacturing conditions that is recommendedto be examined for changes; and

an item group display section displaying a model of the item group byhighlighting the element for which the manufacturing condition isrecommended to be examined for changes.

Also, in achieving the above object and according to the presentinvention, there is provided a design support system including theabove-outlined server, an input terminal, and an output terminal.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram showing a configuration of an automaticestimation system embodying the present invention.

FIG. 2 is a flowchart showing a process performed by a server of theautomatic estimation system in FIG. 1, the process ranging from an itemrecognizing step to a recommended condition proposing step.

FIG. 3 is a flowchart showing a process performed by the server of theautomatic estimation system in FIG. 1, the process ranging from anasking price/delivery date recognizing step to an item group displayingstep.

FIG. 4 is a schematic diagram showing a typical image displayed on adisplay screen in STEP 01 in FIG. 2.

FIG. 5 is a schematic diagram showing a typical image displayed on thedisplay screen in STEP 05 in FIG. 2.

FIG. 6 is a schematic diagram showing a typical image displayed on thedisplay screen in STEP 07 in FIG. 2.

FIG. 7 is a schematic diagram showing a typical image displayed on thedisplay screen in STEP 09 and STEP 10 in FIG. 2.

FIG. 8 is a schematic diagram showing a typical image displayed on thedisplay screen in STEP 18 in FIG. 3.

FIG. 9 is a schematic diagram showing a typical image displayed on thedisplay screen in STEP 19 in FIG. 3.

DETAILED DESCRIPTION OF THE INVENTION

A preferred embodiment of the present invention is described below withreference to the accompanying drawings. Explained first with referenceto FIG. 1 is an automatic estimation system S embodying the presentinvention, the system being also used as a design support system.

As shown in FIG. 1, the automatic estimation system S (design supportsystem) includes an information terminal 1 operated by a user and aserver 2 connected with the information terminal 1 via lines such as theInternet. The automatic estimation system S determines a price anddelivery date of mechanical equipment typically including a plurality ofsheet-metal parts, machined parts, pressed parts, and injection-moldedparts (called “items” hereunder, hence the mechanical equipment referredto as “item group” hereunder) by supporting the design of the mechanicalequipment.

The design support method of the present invention is applicable notjust to the system including a server and a plurality of informationterminals (input and output terminals) connected with the server via anetwork. For example, the design support method may also be applied to asingle information terminal that includes an input section 11 and anoutput section 12 in an information terminal 1, to be discussed later,and processing and storage sections in a server 2.

The information terminal 1 has the input section 11 that includes inputdevices such as a keyboard, a mouse, and a touch panel, and the outputsection 12 including such output devices as a liquid crystal display andspeakers. The information input by the user to the information terminal1 via the input section 11 is transmitted to the server 2 by way of thenetwork. The result of the processing performed by the server 2 on thebasis of the transmitted information is transmitted to the informationterminal 1 and displayed on the output section 12 for presentation tothe user.

The server 2 is a computer including a central processing unit (CPU) anda memory, among others. The server 2 includes an item recognitionsection 21, a shape pattern storage section 22, an item informationacquisition section 23 (manufacturing condition acquisition section), anitem information storage section 24, a condition recognition section 25,and a display processing section 26 (item group display section).

The item recognition section 21 recognizes, in constituent elements,each of the items included in a given item group on the basis of theshape data (e.g., CAD data) regarding the item group, the data beinginput via the input section 11 in the information terminal 1.

The shape pattern storage section 22 stores the shape patterns ofdiverse items. The shape patterns are referenced by the item recognitionsection 21 at a time of recognizing the types of the items in the itemgroup and the elements constituting the items.

From the item information storage section 24, the item informationacquisition section 23 acquires, for each item recognized by the itemrecognition section 21, the manufacturing conditions that can beselected at a time of manufacturing the item and the price and deliverydate of the item in the case where any of the manufacturing conditionsis selected.

The manufacturing conditions here may include, for example, dimensions,tolerance, material, hardness, and surface treatment in addition todiverse parameters that may affect the results of estimation of the itemsuch as its price and delivery date or the nature of the item groupinvolved (its size and weight).

The item information storage section 24 stores, for each item in an itemgroup that can be ordered and designed via the automatic estimationsystem S, the manufacturing conditions that can be selected at a time ofmanufacturing the item and the price and delivery date of the item inthe case where any of the manufacturing conditions is selected. Thestored manufacturing conditions are set and stored not in terms of itemsbut rather in constituent elements of the items.

The condition recognition section 25 recognizes the information input bythe user via the input section 11 in the information terminal 1. Thecondition recognition section 25 includes a designated conditionrecognition section 25 a, a proposed condition recognition section 25 b,an asking price/delivery date recognition section 25 c, a fixedcondition recognition section 25 d, and a fixed element recognitionsection 25 e.

The designated condition recognition section 25 a recognizes, from themanufacturing conditions displayed selectably on the output section 12in the information terminal 1, the condition designated throughselection by the user via the input section 11 in the informationterminal 1.

The proposed condition recognition section 25 b recognizes, from theproposed requests displayed selectably on the output section 12 in theinformation terminal 1, the types of those requests selected by the uservia the input section 11 in the information terminal 1.

The asking price/delivery date recognition section 25 c recognizes theasking price and delivery date of the item group input to input fieldsdisplayed on the output section 12 by the user via the input section 11in the information terminal 1.

The fixed condition recognition section 25 d recognizes, from themanufacturing conditions displayed selectably on the output section 12in the information terminal 1, the designated condition selected by theuser via the input section 11 in the information terminal 1.

The fixed element recognition section 25 e recognizes fixed items andfixed elements selected by the user via the input section 11 in theinformation terminal 1 from the items and the constituent elementsmaking up each item in a 3D model of the item group displayed on theoutput section 12 in the information terminal 1.

As described above, the automatic estimation system S complies with aformat in which selections are made from the designated condition, typeof the proposed request, fixed conditions, fixed items, and fixedelements being presented. However, the format in which to select thedesignated condition, type of the proposed request, fixed conditions,fixed items, or fixed elements is not limited to the above format fordesignation. Alternatively, the condition, request type, items, andelements may be designated in a format for direct character string inputor for direct voice input.

Also, the automatic estimation system S complies with a format in whichthe asking price and delivery date are directly input for designation.However, the format in which to designate the asking price and deliverydate is not limited to the above format for direct input. Alternatively,there may be provided a format in which the asking price and deliverydate are selected from among those presented.

The display processing section 26 displays, on the output section 12 inthe information terminal 1, basic information, a 3D model, manufacturingconditions, and results of estimation regarding the item group on thebasis of the information from the item recognition section 21, iteminformation acquisition section 23, and condition recognition section25. The display processing section 26 includes a 3D model preparationsection 26 a, an item group price/delivery date determination section 26b, a recommended condition proposition section 26 c, a variation valuecalculation section 26 d, and a recommended-to-be-examined elementrecognition section 26 e.

The 3D model preparation section 26 a prepares a 3D model based on theshapes of items recognized by the item recognition section 21, andcauses the output section 12 in the information terminal 1 to displaythe prepared 3D model. The 3D model prepared by the 3D model preparationsection 26 a is segmented into the items and the elements making up eachitem, the items and elements being painted each in a color as desired.The 3D model may also be selected in units of elements.

The item group price/delivery date determination section 26 b determinesthe price and delivery date (estimation result) of the item group on thebasis of the item prices and delivery dates corresponding to thedesignated conditions recognized by the designated condition recognitionsection 25 a. The item group price/delivery date determination section26 b causes the output section 12 in the information terminal 1 todisplay the determined price and delivery date of the item group.

The recommended condition proposition section 26 c selects therecommended condition from the manufacturing conditions in accordancewith the requested type of the proposed request, and displays therecommended condition thus selected on the output section 12 in theinformation terminal 1.

The variation value calculation section 26 d calculates the variationvalues of the determined (i.e., current) price and delivery dateregarding any of the manufacturing conditions that may have beenchanged. The variation value calculation section 26 d displays thecalculated variation values on the output section 12 in the informationterminal 1.

When the designated condition is selected, therecommended-to-be-examined element recognition section 26 e recognizesthe elements for which the manufacturing conditions are recommended tobe examined for changes, and displays the recognized elements on theoutput section 12 in the information terminal 1.

As described above, varieties of information resulting from theprocessing by the item group price/delivery date determination section26 b, recommended condition proposition section 26 c, variation valuecalculation section 26 d, and recommended-to-be-examined elementrecognition section 26 e in the automatic estimation system S are outputas images on the display screen of the output section 12 in theinformation terminal 1. Alternatively, these pieces of information maybe output as both images and sounds.

The processes performed by the server 2 of the automatic estimationsystem S are explained below with reference to FIGS. 1 to 9. FIGS. 2 and3 are flowcharts of the processes carried out by the server 2 of theautomatic estimation system S.

First, the item recognition section 21 recognizes the shapes of theconstituent elements (hereinafter, referred to as “solids”) of the itemgroup based on the shape data regarding the item group input by the userto the input section 11 in the information terminal 1 (STEP 01 in FIG.2).

In STEP 01, the image such as one in FIG. 4 is displayed on the displayscreen of the output section 12 in the information terminal 1. The userinputs the shape data to a shape data input area 12 a on the displayscreen. Alternatively, the user selects previously input shape datadisplayed in the shape data input area 12 a (e.g., data indicated eitheras “PROJECT 1: EJECTOR PIN SET A,” or as “PROJECT 2: EJECTOR PIN SET B”in FIG. 4). This allows the item recognition section 21 to recognize theitem group shape data.

Incidentally, the automatic estimation system of this embodiment uses 3DCAD data as the item group shape data. However, the shape data is notlimited to the 3D CAD data. Alternatively, the shape data may be aplurality of two-dimensional (2D) CAD data or data in some othersuitable format permitting recognition of the shapes of the solidsincluded in the item group.

The item recognition section 21 then references the shape patternsstored in the shape pattern storage section 22 in order to recognize thetype of the items corresponding to the shapes of the recognized solidsas well as the elements making up the items (STEP 02 in FIG. 2).

STEP 01 and STEP 02 above constitute the item recognizing step in theprocess performed by the automatic estimation system S.

Next, the item recognition section 21 prepares a 3D model of the itemgroup based on the shapes of the solids recognized by the itemrecognition section 21 and on the elements making up the recognizeditems (STEP 03 in FIG. 2).

The 3D model of the item group prepared at this point is segmented intothe items and the elements making up each item, the segments beingpainted each in a color as desired. Each of the elements of the 3D modelis selectable. The item group may be modeled not only as a 3D model butalso as a 2D model. The colors used to paint the segments include acolorless portion.

The item information acquisition section 23 then acquires, from the iteminformation storage section 24, the manufacturing conditions that can beselected regarding the elements making up the items recognized by theitem recognition section 21, as well as the prices and delivery datescorresponding to the selectable manufacturing conditions (STEP 04 inFIG. 2).

STEP 04 above is the manufacturing condition acquiring step in theprocess performed by the automatic estimation system S.

The display processing section 26 then displays the prepared 3D modeland also displays the acquired manufacturing conditions in a selectablemanner (STEP 05 in FIG. 2).

In STEP 05, the image such as one in FIG. 5 is displayed on the displayscreen of the output section 12 in the information terminal 1.Specifically, what is displayed is an image that includes a modeldisplay area 12 b, a basic information display area 12 c, amanufacturing condition display area 12 d, an asking price/delivery dateinput area 12 e, a proposed request display area 12 f, and an estimationresult display area 12 g.

The model display area 12 b displays a 3D model M of the item groupconstituted by a plurality of items in a manner allowing each of theelements making up the items to be selected. The display of this 3Dmodel M can be rotatably changed by the user operating the input section11. Also, the format in which the 3D model M is displayed may be changedas desired (i.e., in terms of positions of dimension indications andwire frame indications).

The basic information display area 12 c displays basic informationregarding the item group. The basic information includes, for example,the project name, the type of items (item name), and the number of items(quantity). In this embodiment, the item group is an ejector pin setconsisting of only 6 ejector pins, so that the item name is given solelyas the ejector pin, with the noted quantity covering only the ejectorpins.

The manufacturing condition display area 12 d displays the manufacturingconditions such as material and hardness in a selectable format.Specifically, the selectable manufacturing conditions are displayed as apull-down menu in a manufacturing condition selection area 12 d 1. Inaddition to the manufacturing condition selection area 12 d 1, themanufacturing condition display area 12 d displays fixed checkboxes 12 d2 and a variation value display area 12 d 3, to be discussed later.

The asking price/delivery date input area 12 e displays input fields forthe asking price and the asking delivery date. The user may inputdesired values into these input fields via the input section 11 in theinformation terminal 1.

The proposed request display area 12 f displays proposed request buttonsto be used when a proposed request is made, as will be discussed later.In this embodiment, two buttons are displayed: a “LOWEST PRICE” buttonand an “EARLIEST DELIVERY DATE” button.

The estimation result display area 12 g displays the price and deliverydate (shipping date) of the item group as the result of estimation. Thisarea is currently blank because estimates have yet to be made at thetime of STEP 05.

Then, the designated condition recognition section 25 a in the conditionrecognition section 25 recognizes the designated condition selected bythe user from the displayed manufacturing conditions via the inputsection 11 in the information terminal 1 (STEP 06 in FIG. 2).

STEP 06 above is the designated condition recognizing step in theprocess performed by the automatic estimation system S.

The item group price/delivery date determination section 26 b in thedisplay processing section 26 then determines the delivery date andprice of the item group based on the designated condition recognized bythe designated condition recognition section 25 a in the conditionrecognition section 25 and on the item-by-item prices and delivery datesacquired by the item information acquisition section 23. The item groupprice/delivery date determination section 26 b causes the output section12 in the information terminal 1 to display the determined delivery dateand price (STEP 07 in FIG. 2).

Specifically, the price of the item group may be determined, forexample, by totaling the prices of a plurality of the items making upthe item group, the totaled price being optionally supplemented with anassembly cost. The delivery date of the item group may be determined byselecting the latest of the delivery dates of a plurality of the itemsmaking up the item group. The delivery date of the item group may alsobe determined by supplementing the latest delivery date with the worktime for assembly.

Thereafter, as in the image in FIG. 6, for example, the display screenof the output section 12 in the information terminal 1 displays, in theestimation result display area 12 g, the price and delivery date of theitem group determined by the item group price/delivery datedetermination section 26 b.

Alternatively, STEP 07 may be omitted, i.e., the results of theestimation may not be displayed at this stage. Specifically, control maybe transferred, without the image in FIG. 6 being displayed, to the nextstep with the image in FIG. 5 being displayed.

STEP 07 above, together with STEP 21 to be discussed later, constitutesthe item group price/delivery date determining step in the processperformed by the automatic estimation system S.

Then, the proposed condition recognition section 25 b in the conditionrecognition section 25 discriminates whether the proposed request isrecognized (STEP 08 in FIG. 2).

Specifically, the proposed condition recognition section 25 bdiscriminates whether the “LOWEST PRICE” button or the “EARLIESTDELIVERY DATE” button is selected in the proposed request display area12 f on the display screen of the output section 12 in the informationterminal 1.

In the case where the proposed request is recognized (when “YES” isselected in STEP 08), the recommended condition proposition section 26 cretrieves the recommend condition from the manufacturing conditionsacquired by the item information acquisition section 23 in accordancewith the type of the proposed request recognized by the proposedcondition recognition section 25 b. The recommended conditionproposition section 26 c further displays the retrieved recommendedcondition on the output section 12 in the information terminal 1 (STEP09 in FIG. 2).

Specifically, the recommended condition proposition section 26 c firstacquires a plurality of manufacturing conditions in which the prices arelow and the delivery dates are early. The recommended conditionproposition section 26 c then retrieves the manufacturing condition inwhich the price of the item group as a whole is the lowest at a time ofmanufacture or at which the delivery date of the entire item group isthe earliest, and recognizes the result of the retrieval as therecommended condition. At this point, if the manufacturing conditions tobe fixed have been designated by processes similar to STEP 12 and STEP13, to be discussed later, or if the items or the elements constitutingany item for which the manufacturing conditions need to be fixed havebeen designated, these manufacturing conditions, items, or constituentelements are excluded from the retrieval.

The item group price/delivery date determination section 26 b in thedisplay processing section 26 then determines the delivery date andprice of the item group based on the recommended condition retrieved bythe recommended condition proposition section 26 c and on the prices anddelivery dates of the individual items acquired by the item informationacquisition section 23. The item group price/delivery date determinationsection 26 b displays the determined delivery date and price of the itemgroup on the output section 12 in the information terminal 1 (STEP 10 inFIG. 2).

In STEP 09 and STEP 10, the image such as one in FIG. 7 is displayed onthe display screen of the output section 12 in the information terminal1. This display screen displays the values selected in the manufacturingcondition selection area 12 d 1 of the manufacturing condition displayarea 12 d and the values displayed in the estimation result display area12 g, the values being changed from those in FIG. 6 (i.e., differentfrom the values at the time of STEP 07).

Specifically, if the “LOWEST PRICE” button is selected, “SHIPPING DATE”(delivery date) is changed from “Jun. 29, 2016” to “Jul. 4, 2016” andthe total price is changed from “4,910 yen” to the lowest price “3,890yen” concomitant with “MATERIAL” in the manufacturing conditionselection area 12 d 1 being changed from “SKH51 (58-60 HRC)” to therecommended “NAK80 (37-43 HRC)” and with “HARDNESS” being changed from“58-60 HRC” to the recommended “37-43 HRC.”

STEP 08 through STEP 10 above constitute the recommended conditionproposing step in the process performed by the automatic estimationsystem S.

As described above, the automatic estimation system S proposes therecommended condition (base settings regarding the manufacturingconditions) based on the proposed request. This allows the user toperform design while referencing the base design.

After the delivery date and price of the item group based on therecommended condition have been displayed (after STEP 10) or in the casewhere the proposed request is not recognized (“NO” in STEP 08), theasking price/delivery date recognition section 25 c in the conditionrecognition section 25 recognizes the asking price and delivery dateinput by the user via the input section 11 in the information terminal 1(STEP 11 in FIG. 3).

Specifically, the asking price/delivery date recognition section 25 crecognizes the values input by the user via the input section 11 of theinformation terminal 1 into the input fields of the askingprice/delivery date input area 12 e displayed on the display screen ofthe output section 12.

STEP 11 above is the asking price/delivery date recognizing step in theprocess performed by the automatic estimation system S.

Then, the fixed condition recognition section 25 d in the conditionrecognition section 25 recognizes the fixed conditions selected from thedisplayed manufacturing conditions by the user via the input section 11in the information terminal 1 (STEP 12 in FIG. 3).

Specifically, the fixed condition recognition section 25 d recognizesthe manufacturing conditions of which the fixed checkboxes 12 d 2 arechecked in the image displayed on the display screen of the outputsection 12.

The fixed element recognition section 25 e then recognizes the fixeditems or fixed elements (hereinafter, generically referred to as “fixedelements”) selected from the displayed 3D model by the user via theinput section 11 in the information terminal 1 (STEP 13 in FIG. 3).

Specifically, the fixed element recognition section 25 e recognizes theitems or the item constituent elements which have the manufacturingconditions fixed and which are directly selected from the 3D model Mdisplayed on the display screen of the output section 12.

STEP 12 above is the fixed condition recognizing step in the processperformed by the automatic estimation system S. STEP 13 above is thefixed element recognizing step in the process carried out by theautomatic estimation system S.

As described above, the automatic estimation system S permits selectionof the manufacturing condition desired by the user or selection of theitems or the elements whose manufacturing conditions are to be fixed(i.e., selection of the fixed conditions or the fixed elements). Thismakes it possible to further narrow down the manufacturing conditions tobe examined for changes.

Alternatively, STEP 12 and STEP 13 above may be omitted. Control maythen be transferred to the next step without the fixed conditions or thefixed elements being selected.

On the basis of the price and delivery date regarding each of themanufacturing conditions acquired by the item information acquisitionsection 23, the variation value calculation section 26 d in the displayprocessing section 26 then calculates the variation values of the priceand delivery date of the item group in the case where each of itsmanufacturing conditions is changed (STEP 14 in FIG. 3).

Specifically, in reference to the price and delivery date of the itemgroup determined (i.e., currently) by the item group price/delivery datedetermination section 26 b, the variation value calculation section 26 dcalculates the variation values of the price and delivery date of theitem group determined in the case where the manufacturing conditioninvolved is changed.

STEP 14 above is the variation value calculating step in the processperformed by the automatic estimation system S.

The recommended-to-be-examined element recognition section 26 e in thedisplay processing section 26 then calculates the differences betweenthe determined (i.e., current) price and delivery date of the item groupon the one hand and the input asking price and asking delivery date onthe other hand (STEP 15 in FIG. 3).

The recommended-to-be-examined element recognition section 26 e thendiscriminates whether the differences are at least minimum values of thevariation values (STEP 16 in FIG. 3).

In the case where the differences are at least the minimum values of thevariation values (“YES” in STEP 16), the recommended-to-be-examinedelement recognition section 26 e retrieves the recommended manufacturingconditions which, if changed, approximate the asking price and askingdelivery date, with the exception of the fixed conditions and themanufacturing conditions regarding the fixed elements (STEP 17 in FIG.3)

Specifically, the recommended-to-be-examined element recognition section26 e retrieves the manufacturing conditions whose variation valuesapproximate the differences. At this point, therecommended-to-be-examined element recognition section 26 e may retrievea plurality of manufacturing conditions which, if changed, approximatethe asking price and asking delivery date. For each of the retrievedmanufacturing conditions, the recommended-to-be-examined elementrecognition section 26 e may also recognize the degree of how closelythe item group price and delivery date determined following the changeof the condition approximate the asking price and the asking deliverydate. Specifically, the manufacturing conditions whose variation valuesapproximate the differences may be recognized as having high degrees ofapproximation.

STEP 17 above is the recommended-to-be-examined element recognizing stepin the process performed by the automatic estimation system S.

The recommended-to-be-examined element recognition section 26 e thendisplays the variation values in manufacturing condition display fields,and further displays in color those manufacturing condition displayfields corresponding to the recommended condition as well as the itemsor the elements constituting the items in the 3D model that correspondto the recommended condition (STEP 18 in FIG. 3).

For example, as in the image in FIG. 8, the variation values aredisplayed in the variation value display area 12 d 3 inside themanufacturing condition display area 12 d on the display screen of theoutput section 12 in the information terminal 1. At the same time, ofthe manufacturing conditions in the manufacturing condition selectionarea 12 d 1, those corresponding to the recommended condition aredisplayed in color. Also, of the items in the 3D model M displayed inthe model display area 12 b, those corresponding to the recommendedcondition are displayed in color.

Specifically, the variation value display area 12 d 3 displays thevariation value for each of the options included in the pull-down menuof “FLANGE DIAMETER TOLERANCE” (i.e., “+235 YEN” displayed in the option“0/−0.02”). Incidentally, with this embodiment, the variation value ofthe delivery date is not displayed.

Alternatively, the variation value of the delivery date may be displayedin place of the variation value of the price. As another alternative,both the variation value of the price and that of the delivery date maybe displayed.

Also, given the displayed options, the manufacturing condition displayarea 12 d highlights, in different colors, “FLANGE DIAMETER TOLERANCE”for which the manufacturing condition is changed and “SHANK DIAMETERTOLERANCE” for which the manufacturing condition is recommended to beexamined for changes.

Also, the model display area 12 b highlights the element correspondingto “FLANGE” as the item selected from the 3D model M as well as thetolerance value of the element size using a color similar to that of“FLANGE DIAMETER TOLERANCE,” the name displayed in the manufacturingcondition display area 12 d. At the same time, the model display area 12b highlights “FLANGE” of the other items for which the manufacturingconditions are similar to those of “FLANGE” as the currently selecteditem using a color similar to but lighter than that of “FLANGE,” thecurrent item.

Furthermore, the model display area 12 b highlights the elementcorresponding to “SHANK DIAMETER TOLERANCE” associated with therecommended condition and the tolerance value of the element size, usinga color similar to that of “SHANK DIAMETER TOLERANCE,” the namedisplayed in the manufacturing condition display area 12 d.

STEP 18 above is the item group displaying step in the process performedby the automatic estimation system S.

As described above, the automatic estimation system S indicates themanufacturing condition to be examined to let the price and deliverydate of the item group approximate respectively the asking price andasking delivery date, the manufacturing condition beingcolor-highlighted as the recommended condition. This allows the user tovisually recognize the manufacturing condition to be examined next forspecific elements. That is, the automatic estimation system S presentsthe manufacturing condition to be examined in an intuitivelycomprehensible manner so that the user can efficiently examine themanufacturing condition.

In the case where a plurality of recommended conditions are retrieved inSTEP 17 above, those elements which correspond to the recommendedcondition and for which the same manufacturing condition is designated(e.g., individual flanges of a plurality of the pins in this embodiment)may be highlighted in the same color when the recommended condition ispresented in STEP 18, as shown in FIG. 8.

Where a plurality of elements corresponding to the recommended conditionare arranged to be highlighted on display as described above, aplurality of elements (manufacturing conditions) can be examined at thesame time. Specifically, it is possible to examine whether tocollectively change the manufacturing conditions or whether to changeonly part of the manufacturing conditions.

In STEP 17 above, in the case where a plurality of recommendedconditions are retrieved and where calculations are made of how closelythe item group price and delivery date determined after changing of themanufacturing conditions approximate the asking price and askingdelivery date respectively (i.e., calculation of the degrees ofapproximation), each of the elements corresponding to the recommendedcondition may be highlighted in a different color reflecting the degreeof approximation (e.g., the higher the degree of approximation, thedarker the color in which the recommended condition is painted) when therecommended condition is presented in STEP 18.

When a plurality of types of recommended conditions are arranged to bepresented as described above, it is easy to recognize the degrees ofimportance of the manufacturing conditions to be examined.

Alternatively, solely the most highly recommended manufacturingcondition (with which the asking price and asking delivery date will bemost closely approximated at a time of condition change) may behighlighted on display.

Meanwhile, in the case where the differences are less than the minimumvalues of the variation values (“NO” in STEP 16), therecommended-to-be-examined element recognition section 26 e indicatesthat the determined price and delivery date of the item groupapproximate most closely the asking price and asking delivery daterespectively (STEP 19 in FIG. 3).

For example, as in the image in FIG. 9, the current manufacturingcondition is indicated as an optimum condition in the estimation resultdisplay area 12 g on the display screen of the output section 12 in theinformation terminal 1.

Specifically, the estimation result display area 12 g displays a messagesuch as “This price most closely approximates the asking price.”

The automatic estimation system S uses the minimum values of thedifferences and of the variation values as the threshold values.However, the threshold values are not limited to these values and may beset as desired by the user.

After the recommended condition is presented at the same time as thedisplay of the variation values (after STEP 18) or following theindication that the determined price and delivery date of the item groupapproximate most closely the asking price and asking delivery daterespectively (after STEP 19), the condition recognition section 25discriminates whether the manufacturing condition is changed (STEP 20 inFIG. 3).

In the case where the manufacturing condition is changed (“YES” in STEP20), the item group price/delivery date determination section 26 b inthe display processing section 26 determines the price and delivery dateof the item group on the basis of the prices and delivery dates of theitems corresponding to the changed manufacturing condition, and displaysthe determined price and delivery date (STEP 21 in FIG. 3).

Following STEP 21, the processing ranging from STEP 14 to STEP 20 isrepeated.

In the case where the manufacturing condition is not changed (“NO” inSTEP 20), the server 2 terminates the current process.

As explained above, even if the user has no specialized knowledge ofdesign, the automatic estimation system S provides guidance of themanufacturing conditions to be examined so that the user will easilydesign the entire item group in a manner satisfying the desiredconditions.

The embodiment pictured in the accompanying drawings was describedabove. However, this embodiment is not limitative of the presentinvention.

For example, the above-described embodiment has the design supportsystem included in the automatic estimation system S. That is becausethe price and delivery date of the item group are part of the objects tobe designed. Still, the design support method, server, and designsupport system according to the present invention may support the designof the item group as a whole. That is, the method, server, and system ofthe invention may also support the design of objects other than theprice and delivery date (i.e., the automatic estimation system is notlimitative of the invention).

For example, an embodiment of the invention may support the design ofsuch characteristics as weight, size, and heat resistance of the entireitem group. In this case, however, the manufacturing conditions need tobe concerned with such characteristics as weight, size, and heatresistance.

Also, the above-described embodiment uses the asking price and askingdelivery date of the item group as the criteria for discriminatingwhether a given manufacturing condition is recommended to be examinedfor changes. Alternatively, however, the design support system, server,and design support method according to the present invention may use, inaddition to the asking price and asking delivery date, desiredconditions (e.g., weight, size, etc., of the item group as a whole)determined beforehand by the user regarding the entire item group as thediscrimination criteria. As another alternative, previously accumulateddata about the conditions preferred in terms of design or about theconditions generally favored by users may be used as the criteria.

Whereas the embodiment above uses both price and delivery date as thecriteria for design, either the price or the delivery date alone may beused as the criteria for design.

Also, the above embodiment highlights in color those elements in the 3Dmodel which correspond to the manufacturing conditions recommended to beexamined for changes. However, the design support method, server, anddesign support system of the present invention need only provide ahighlighted display, not just the colored display, that allows the userto intuitively understand the elements of interest. For example, iconssuch as arrows may be displayed where needed to designate the elementsconcerned. As another example, the elements involved may be designatedby voice.

Also, the above-described embodiment permits selection of themanufacturing conditions to be fixed or of the items or the elementsmaking up the items for which the manufacturing conditions are to befixed. Alternatively, the design support method, server, and designsupport system of the present invention may omit the functions to permitselection of the manufacturing conditions to be fixed or of the items orthe elements making up the items for which the manufacturing conditionsare to be fixed.

Further, the above embodiment displays the calculated variation values.Alternatively, the design support method, server, and design supportsystem according to the present invention may calculate the variationvalues without displaying them. The calculated variations values maythen be used solely to highlight on display the manufacturing conditionsrecommended to be examined for changes.

REFERENCE SIGNS LIST

-   1 Information terminal (input terminal, output terminal)-   2 Server-   11 Input section-   12 Output section-   12 a Shape data input area-   12 b Model display area-   12 c Basic information display area-   12 d Manufacturing condition display area-   12 d 1 Manufacturing condition selection area-   12 d 2 Fixed checkboxes-   12 d 3 Variation value display area-   12 e Asking price/delivery date input area-   12 f Proposed request display area-   12 g Estimation result display area-   21 Item recognition section-   22 Shape pattern storage section-   23 Item information acquisition section (manufacturing condition    acquisition section)-   24 Item information storage section-   25 Condition recognition section-   25 a Designated condition recognition section-   25 b Proposed condition recognition section-   25 c Asking price/delivery date recognition section-   25 d Fixed condition recognition section-   25 e Fixed element recognition section-   26 Display processing section (item group display section)-   26 a 3 D model preparation section-   26 b Item group price/delivery date determination section-   26 c Recommended condition proposition section-   26 d Variation value calculation section-   26 e Recommended-to-be-examined element recognition section-   M 3D model-   S Automatic estimation system (design support system)

1. A design support method for supporting design of an item groupincluding a plurality of items, the design support method comprising: anitem recognizing step of recognizing each of the items included in theitem group by individually recognizing elements making up the item; amanufacturing condition acquiring step of acquiring, for each of therecognized items, manufacturing conditions selectable at a time ofmanufacturing the item; a designated condition recognizing step ofrecognizing a designated condition from the manufacturing conditions; arecommended-to-be-examined element recognizing step of recognizing, withrespect to the designated condition recognized, [[the]] a firstrecommended-to-be-examined element corresponding to any of themanufacturing conditions that is recommended to be examined for changesand a second recommended-to-be-examined element corresponding to anotherof the manufacturing conditions that is recommended to be examined forchanges when the first recommended-to-be-examined element is changed;and an item group displaying step of displaying a model of the itemgroup by differently highlighting the first recommended-to-be-examinedelement and the second recommended-to-be-examined element from eachother.
 2. The design support method according to claim 1, wherein, ifthere are a plurality of the elements highlighted on display by the itemgroup displaying step, the highlighted elements for which the samemanufacturing condition is designated are painted in the same color. 3.A server for supporting design of an item group including a plurality ofitems, the server comprising: an item recognition section recognizingeach of the items included in the item group by individually recognizingelements making up the item; an item information storage section storinga manufacturing condition for each of the elements selectable at a timeof manufacturing the items; a manufacturing condition acquisitionsection acquiring, for each of the items recognized by the itemrecognition section, the manufacturing conditions selectable at a timeof manufacturing the item; a designated condition recognition sectionrecognizing a designated condition from the manufacturing conditions; arecommended-to-be-examined element recognition section recognizing, withrespect to the designated condition recognized, a firstrecommended-to-be-examined element corresponding to any of themanufacturing conditions that is recommended to be examined for changesand a second recommended-to-be-examined element corresponding to anotherof the manufacturing conditions that is recommended to be examined forchanges when the first recommended-to-be-examined element is changed;and an item group display section displaying a model of the item groupby differently highlighting the first recommended-to-be-examined elementand the second recommended-to-be-examined element from each other.
 4. Adesign support system comprising the server according to claim 3, aninput terminal, and an output terminal.
 5. A design support method forsupporting design of an item group including a plurality of items of thesame type, the design support method comprising: an item recognizingstep of recognizing each of the items included in the item group byindividually recognizing elements making up the item; a manufacturingcondition acquiring step of acquiring, for each of the recognized items,manufacturing conditions selectable at a time of manufacturing the item;a designated condition recognizing step of recognizing a designatedcondition from the manufacturing conditions; arecommended-to-be-examined element recognizing step of recognizing, withrespect to the designated condition recognized, the elementcorresponding to any of the manufacturing conditions that is recommendedto be examined for changes; and an item group displaying step ofdisplaying a model of the item group by highlighting the element forwhich the manufacturing condition is recommended to be examined forchanges.